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Finding the Fourth Proportional to 79,506.57, 109,716.75 and 43,696.53

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Solution

The fourth proportional to 79,506.57, 109,716.75 and 43,696.53 is: 60,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,506.57 : 109,716.75 = 43,696.53 : x
  2. Step 2: Convert to fraction form
    79,506.57/109,716.75 = 43,696.53/x
  3. Step 3: Cross multiply
    79,506.57x = 109,716.75 × 43,696.53
  4. Step 4: Simplify right side
    79,506.57x = 4,794,241,257.88
  5. Step 5: Solve for x
    x = 4,794,241,257.88/79,506.57
  6. Step 6: Final answer
    x = 60,299.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.